Functional neural reorganization following ischemic stroke in the precentral knob: an fMRI study

We evaluated a 63 year-old, right-handed woman by functional MRI (fMRI) in the early and the recovery stages following a cerebral infarction in the right precentral knob. An activated signal in the ipsilateral sensorimotor cortex and contralateral supplementary motor cortex during deteriorated hand...

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Bibliographic Details
Published inRinshō shinkeigaku Vol. 42; no. 10; p. 974
Main Authors Hirabayashi, Hisayuki, Kurita, Daisaku, Hamano, Hitoshi, Haida, Munetaka, Shinohara, Yukito
Format Journal Article
LanguageJapanese
Published Japan 01.10.2002
Subjects
Cerebral Infarction - diagnosis
Cerebral Infarction - physiopathology
Female
Hand
Humans
Magnetic Resonance Imaging
Middle Aged
Motor Cortex - blood supply
Movement
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Summary:We evaluated a 63 year-old, right-handed woman by functional MRI (fMRI) in the early and the recovery stages following a cerebral infarction in the right precentral knob. An activated signal in the ipsilateral sensorimotor cortex and contralateral supplementary motor cortex during deteriorated hand grasping (left) was observed in the early stages, whereas being unable to detect in the functionally recovered period. When simultaneous bilateral hand grasping was performed, the activated signal around infarct region was enlarged in recovered period. The functionally neural reorganization processes relating recovered hand movement after localized cortical infarction (precentral knob) was suggested.
ISSN:0009-918X